Officials this morning announced the 10 events leading up to the Jan. 31 gala event to celebrate the 50th anniversary of American Space Flight.

Planned events are:

• Tuesday, Jan. 22: Dr. Neil deGrasse Tyson, astrophyscist and director of the Hayden Planetarium in New York City, will speak at the Huntsville-Madison County membership meeting 11:30 a.m. in the Von Braun Center;

Relighting the Saturn V replica outside the Space & Rocket Center, which has been dark for the past year as crews built the Davidson Center for Space Exploraion. 1 Tranquility Base, 5 p.m., www.us50thspace.com